This Escalade has it all, Alpine procession provides Dolby Digital outputs including three 6" component sets up front and two more in the rear. One 300/4 Biamps the front doors, the other 300/4 biamps the center channel and runs the rear speakers. The 1000/1 runs the three 8W7s in a down-firing acoustic suspension enclosure. The outside and inside of the box is covered in suede. Video to the Alpine head unit and Vizualogic head rests comes from the roof mounted Tracvision system. It also has a K40 calibre radar detector system. More pics at www.mysafeandsound.com